First, hyenas don't feel hungry. In fact, hyenas are not huge, and their food intake is not very large. Therefore, they eat a wide variety of meat, which can be enjoyed by almost any animal. Therefore, it is possible that after seeing the lion's body, it is only enough to eat a few mouthfuls. In addition, the lion's body is relatively large and heavy, and it is difficult to drag it to other places. So I took two bites and walked away.
The second is to inform other companions to enjoy a big meal together. Hyenas are social animals. They can often be led by a female hyena, but the number of hyenas is generally around 20 to 80, and they don't go out together when hunting. Instead, after seeing the body, eat two bites to fill your stomach, and then go back and inform other hyenas to share this delicious food. This will not only save time, but also prevent other accomplices from grabbing food.
Third, I am afraid that lions will retaliate, because hyenas and lions are natural enemies. After seeing the corpse of a lion, if you eat it for too long, you will have a great chance to meet other lions and there will be a fierce battle. In order to avoid this kind of war, hyenas will not risk eating all the meat of lions.
If we see that hyenas just eat a few bites of the lion's body and walk away, it's not that lions are not delicious, but that they have the above reasons. Lions and hyenas are natural enemies on African grasslands. Under normal circumstances, hyenas don't take the initiative to attack lions, because they are not completely sure that they can defeat them. So if they attack lions, they will only pick some old, weak, sick and single lions to attack.